Green Party presidential nominee Jill Stein was escorted by police off the site of Monday’s presidential debate between Donald Trump and Hillary Clinton after she tried to crash the event, USA Today reported.

Police approached Stein at Hofstra University in Hempstead, New York, after USA Today reporter Eliza Collins saw the Green Party nominee boarding a press bus.

Stein was escorted off the premises because she didn’t have the proper credentials to attend the event.

Third-party candidates need to garner at least 15% support in order to participate in the presidential debates. According to the RealClearPolitics polling average, Stein has 2.4% support among the three other nominees – Trump, Clinton, and Libertarian Party nominee Gary Johnson.

Following her removal, Stein relocated to a nearby location with her supporters and tweeted she would be joining Monday night’s debate via Twitter.

“Our supporters are going to attempt to escort Jill in. We are expecting they will be unsuccessful,” Figueroa told USA Today. If she’s not allowed in, “Jill will be holding a people’s debate outside the crowd.”

This isn’t the first time Stein has protested a presidential debate.

In 2012, Stein and her running mate, Cheri Honkala, were arrested for disorderly conduct after attempting to gain access to the presidential debate between Mitt Romney and Barack Obama.